SKU: 16438526291

APR PEX Intake - Audi / B9 / S4 / S5

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Description

APR PEX Intake - Audi / B9 / S4 / S5APR is proud to unveil the Full Intake System for the Audi S4 and S5 (B9) 3. 0T EA839an all in one solution designed to deliver maximum airflow, enhanced turbocharger efficiency, and real, measurable performance gains. The APR Full Intake System is perfect for Audi enthusiasts seeking the ultimate intake upgrade. Unlike others that address only a portion of the intake system, requiring the inlets and outlets to neck down to the factory diameter for


APR is proud to unveil the Full Intake System for the Audi S4 and S5 (B9) 3.0T EA839—an all-in-one solution designed to deliver maximum airflow, enhanced turbocharger efficiency, and real, measurable performance gains.

The APR Full Intake System is perfect for Audi enthusiasts seeking the ultimate intake upgrade. Unlike others that address only a portion of the intake system, requiring the inlets and outlets to neck down to the factory diameter for compatibility, this comprehensive solution replaces every component from the inlet scoop to the turbocharger inlet. This eliminates restrictions throughout the system, ensuring unmatched airflow and turbo performance with the largest inlet physically possible.

Key to the system’s superior performance is its optimized design. Making the inlet as large as possible is the goal but space is extremely limited. By maximizing the internal diameter with thin-walled heat-resistant composite materials, APR achieves an impressive 31% more airflow compared to stock. This translates directly into improved turbocharger efficiency, faster spool times, and significant power gains, adding +19 AWHP and +20 AWFT-LBS of torque when paired with the APR Stage 1 (93) tune.

Additionally, the APR Full Intake System is engineered with functionality, performance, and sound in mind. The PEX airbox shields the filter from the engine bay, while its thoughtfully placed cutouts provide additional airflow and a refined engine sound. A massive 7” x 7” washable pleated cotton gauze filter further enhances performance with vast filtration surface area while ensuring long-lasting usability.

Whether you’re focused on unlocking power, enhancing turbo performance, or future-proofing your vehicle for upgrades, the APR Full Intake System is the only intake you’ll ever need.

Testing Results That Speak for Themselves

The performance of the factory intake system is no match for the APR Full Intake System. The stock setup is limited to a maximum flow of 400 CFM at 28” H2O, whereas our full intake system achieves a significant 31% improvement, flowing 525 CFM under the same conditions.

This increase in airflow is paired with a dramatic reduction in pressure drop across the system, allowing the turbocharger to spool faster and operate in a more efficient range of its compressor map. The result is not just theoretical—it’s power you can feel.

On our Stage 1 (93) tuned Audi S4, simply installing the APR Full Intake System delivered an additional +19 AWHP and +20 AWFT-LBS of torque, proving its capability to unlock your vehicle’s full potential.

Features:

  • Complete System Replacement: Includes inlet scoop, airbox, filter, and turbo inlet pipe, eliminating all factory restrictions.
  • +19 AWHP & +20 AWFT-LBS Power Gains: When paired with APR Stage 1 (93).
  • 31% More Airflow: Improved from 400 CFM (stock) to 525 CFM.
  • Enhanced Turbocharger Efficiency: Reduces pressure drop, allowing the turbo to spool faster and operate more efficiently.
  • High-Temperature Composite Turbo Inlet: Enables thin-wall tubing for maximum internal diameter and airflow.
  • PEX Airbox: Heat-shield design with additional flow paths in low temperature zones.
  • Massive Washable Filter: 7” x 7” pleated cotton gauze with a 5.5” frontal inlet and 4” outlet for superior filtration and performance.
  • Future-Proof Design: Billet turbo inlet adapter accommodates larger turbos with a simple swap.
  • All-Inclusive Kit: Includes OEM gaskets, clamps, and hardware for an easy, bolt-on installation.
  • Emissions-Friendly: Requires no tuning and is compliant with emissions standards.
  • Improved Engine Sound: Adds a sporty, refined tone without being overbearing.

 

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 16438526291

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4.4 ★★★★★
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J
Verified Purchase
J. Armstrong
Louisville, US
★★★★★ 5
A clear and concise book
Format: Hardcover
Fascinating book. Berntsen provides some interesting insights and recommendations on how we should fix problems at the CIA and in the national security apparatus. At a time when most critics want to destroy the Agency, Berntsen provides some plain spoken sanity. Human Intelligence, Counterterrorism and National Leadership needs to be read by anyone entering into defense, foreign affairs or intelligence - and anyone else with an interest in how the CIA works. It is a fast and enjoyable read.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 17, 2008
R
Verified Purchase
Retired Reader
West Palm Beach, US
★★★★★ 4
Skimming the Surface
Format: Hardcover
The essence of this book is to succinctly explain the role of CIA's National Clandestine Service (Directorate of Operations) in formulating and more importantly executing a coherent counter-terrorism strategy. Gary Berntsen is a retired CIA intelligence officer (clandestine service) with an impressive record of field assignments to his credit. He also clearly knows the ways of Washington D.C. in that this book is designed for those suffering from attention deficit disorder. While he raises several interesting point in the book, he also reveals an astonishing narrowness of view and tendency to reduce everything to its simplest terms. In his introductory `background' chapter Berntsen makes the dubious claim that the collection of intelligence from human sources (HUMINT) is the "primary mission of CIA." Apparently he is unaware that CIA was originally founded to produce all source finished intelligence and that the National Intelligence Council (NIC), until recently under CIA, was the final word in the U.S. Intelligence System. Nothing reveals the sorry state of CIA's Directorate of Intelligence better than this claim. In the same manner Berntsen is apparently oblivious to the availability and uses of intelligence collected by technical means. To his credit he does recognize that the best intelligence is more often available from open (non-classified) sources than from secret sources. Yet he neither expands nor follows up this observation. Berntsen more or less follows this pattern through out this book. For example he provides a brief discussion of the traditional Islamic Banking System called Hawalla, but is apparently unaware that the system is based on a recognized credit not cash and that money does not move across international borders. The system is widely trusted and is widely used by Muslim expatriates in the West and Saudi Arabia to send money home. For this reason Hawalla credit transfers providing money to terrorists are easily lost in a world wide mass of transactions. Yet it is possible to track Hawalla transactions and it has been done without "intensive manpower" allocations. Berntsen deserves a good deal of respect and credit for his obvious service to the U. S. and his dedication to the cause of clandestine intelligence operations and its hand maiden covert operations. Yet this book is a terminally superficial and ill-considered work by someone who not only should know better, but could have produced a first rate `practical guide' to a counter-terrorism strategy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 30, 2008
M
Verified Purchase
matt crossland
Waukegan, US
★★★★★ 5
Excellent Overview on Counterterrorism
Format: Hardcover
What really sets this book apart from the rest of books on the subject is that it illustrates positive solutions to the problems. It is also a very entertaining and fun read. I would highly recommend this book to anyone concerned over current events and terrorism in our time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2014
B
Verified Purchase
Brian
Cuba, US
★★★★★ 4
Good book worth adding to your CIA collection.
Format: Kindle
I enjoyed reading this quite a bit. It's a very fast read that provides an introduction to the layers of the CIA.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 2, 2016
R
Verified Purchase
Reviewer Two
Grantham, US
★★★★★ 5
Five Stars
Format: Hardcover
Excellent CIA methofology review
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2017

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